212492246 has 8 divisors (see below), whose sum is σ = 319924080. Its totient is φ = 105850888.

The previous prime is 212492237. The next prime is 212492249. The reversal of 212492246 is 642294212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×212492246² = 90305909220249032, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212492249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196946 + ... + 198021.

It is an arithmetic number, because the mean of its divisors is an integer number (39990510).

Almost surely, 2^212492246 is an apocalyptic number.

212492246 is a deficient number, since it is larger than the sum of its proper divisors (107431834).

212492246 is a wasteful number, since it uses less digits than its factorization.

212492246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395238.

The product of its digits is 13824, while the sum is 32.

The square root of 212492246 is about 14577.1137746812. The cubic root of 212492246 is about 596.7343376254.

The spelling of 212492246 in words is "two hundred twelve million, four hundred ninety-two thousand, two hundred forty-six".